python cmd中升级Django到最新版本

已经安装过Django操作

1.打开cmd（在电脑左下角搜索框内输入cmd
PS：如果已经安装python并配置好环境的话）

C:\Users\LENOVO>pip install upgrade pip
ERROR: Could not find a version that satisfies the requirement upgrade (from versions: none)
ERROR: No matching distribution found for upgrade
WARNING: You are using pip version 21.1.1; however, version 21.1.2 is available.
You should consider upgrading via the '

c:\users\lenovo\appdata\local\programs\python\python37\python.exe -m pip install --upgrade pip

' command.

2.复制 ‘里面内容’
我这里是
c:\users\lenovo\appdata\local\programs\python\python37\python.exe -m pip install --upgrade pip
(不同电脑安装时文件存放地址不同，所以前半部分可能有差异）

3.在cmd里粘贴并按回车
出现下图所示进度条方法及为正确

未安装过Django

安装在cmd输入命令
pip install django
直接安装最新版本
如果需要安装指定版本输入命令
pip install django==版本
例如输入：pip install django==2.0.7即安装2.0.7版本的Django